Side portion of earphone



FIG. 1 is a left side isometric view of an embodiment of side portion of earphone showing our new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof.

FIG. 6 is first side elevation view thereof; and,

FIG. 7 is a second side elevation view thereof.

The broken lines depict environment that forms no part of the claimed design. 

CLAIM The ornamental design for side portion of earphone, as shown and described. 